Aggregation-induced CPL response from chiral binaphthyl-based AIE-active polymers via supramolecular self-assembled helical nanowires

In this paper chiral polymer R-P could be synthesized by click polymerization reaction of (R)-3,3'-diethynyl-2,2'-bis(octyloxy)-1,1'-binaphthalene (R-M-1) and 1,2-bis(4-azidophenyl )- 1,2-diphenylethene (M-2), and S-P was obtained by click polymerization reaction of (S)-3,3'-diethynyl-2,2'-bis(octyloxy)1,1'-binaphthalene (S-M-1) and M-2, respectively. R-/S-P enantiomers can show strong aggregation-induced circularly polarized luminescence (AICPL) emission signals in the aggregate and cast-spin film, and the dissymmetry factors (g(lum)) can be up to 6.97 x 10(-3) and 1.45 x 10(-2), respectively. The SEM images further demonstrate that AICPL response behavior of R-/S-P can be attributed to the formation of the supramolecular self-assembled helical nanowires in the aggregation state at 90% of the fraction of water (f(w)). (C) 2018 Elsevier Ltd. All rights reserved.